Allyson completed the division below. 9 StartLongDivisionSymbol 187.2 EndLongDivisionSymbol minus 18 = 07 minus 0 = 72. 72 minus 72 = a remainder of 0 and a quotient of 20.8.

What is Allyson’s error?
She included a 0 in the quotient that does not belong.
She multiplied the dividend by 100 instead of 10.
She should have multiplied both numbers by 100.
She did not subtract correctly in one of the steps.